Сульфодиес
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I can't say that the proposed changes are bad, but you could write them in a more structured way. "We're doing this because it will balance the tiers and allow each tier to maintain its primary role... We're doing that because the faction needs to be strengthened/weakened."
Otherwise, everything is good and interesting, but nothing is clear...
Well, the reasoning behind the bonuses and debuffs is written. For example, reread the descriptions for the Pit Lord, Archer, and Archangel.